function queryOwnedBook()  {		// ajax
   if (!window.XMLHttpRequest)
     var httpRequest = new ActiveXObject("Microsoft.XMLHTTP");
   else
     var httpRequest = new XMLHttpRequest();
      
      try {
        httpRequest.open('GET', '/Shuku-Website/GetOwnedBook.do?begin=0', false);
        httpRequest.setRequestHeader('Content-Type', 'text/html; encoding=gbk'); 
        httpRequest.send("");
        if (httpRequest.status == 200){
    		var data = httpRequest.responseText;
    		alert(data);
          }
        else
          return httpRequest.status + " " + httpRequest.statusText;
      }
      catch (e) {
        return e;
      }

}